O.M.A.C. s.r.l.
Via Giovanni Falcone, 8 42048 Rubiera (RE) - Italy Tel.0522/629371 - 629923 Fax 0522/628980
Rev.4 del 01/2010 O.M.A.C. s.r.l.
7.1.6 Codes of the springs used in the mechanical safety valve
The table below list the identifi cation codes of the springs used in the mechanical safety valves (see ref. section 3.3.3), codes that can be used to order
any spare parts.
PUMP SPRING CODE
B100
(0 ÷ 5 bar) code 422F015 (6 ÷ 10 bar) code 422F016 -
B105 B110 B115
(0 ÷ 13 bar) code 422F001 (14 ÷ 17 bar) code 422F011 (18 ÷ 20 bar) code 422F002
B215 B220
(0 ÷ 13 bar) code 422F001 (14 ÷ 17 bar) code 422F011 (18 ÷ 20 bar) code 422F002
B325 B330 B390
(0 ÷ 7 bar) code 422F003 (8 ÷ 13 bar) code 422F011 (14 ÷ 17 bar) code 422F005
B430 B440
(0 ÷ 7 bar) code 422F017 (8 ÷ 11 bar) code 422F004 (12 ÷ 17 bar) code 422F008
B470 B490
(0 ÷ 7 bar) code 422F013 (8 ÷ 15 bar) code 422F014 -
7.1.7 Codes of the springs used in the external bridge mechanical safety valve
The table below lists the kinds of springs used in the external bridge mechanical safety valves (see ref. section 3.3.3): depending on the adjustment
pressure and valve diameter one can recognise the spring identifi cation letter: “A”, “B”, “C”, “D”, “E”.
VALVE DIMENSION
PRESSURE (BAR)
SPRING “A” SPRING “B” SPRING “C” SPRING “D” SPRING “E”
DN 25
0.5 ÷ 2 bar 1 ÷ 3.5 bar 1 ÷ 6.5 bar 1 ÷ 9 bar 1 ÷ 10 bar
DN 32
0.5 ÷ 2 bar 1 ÷ 3.5 bar 1 ÷ 6.5 bar 1 ÷ 9 bar 1 ÷ 10 bar
DN 40
0.5 ÷ 2 bar 1 ÷ 3.5 bar 1 ÷ 6.5 bar 1 ÷ 9 bar 1 ÷ 10 bar
DN 50
0.5 ÷ 2 bar 1 ÷ 3.7 bar 1 ÷ 6 bar 1 ÷ 10 bar
DN 65
0.5 ÷ 2 bar 0.5 ÷ 3.3 bar 1 ÷ 7.7 bar
DN 80
0.5 ÷ 1.7 bar 0.5 ÷ 2.3 bar 1 ÷ 5 bar
DN 100
0.5 ÷ 1.3 bar 0.5 ÷ 4 bar
7.2 Recommended spare parts
It is advisable for the Customer, in order to ensure the shortest plant down time, to stock up on spare parts relating to sealing parts complete with
gaskets.
The codes relating to these components can be found in sections 7.1.1.3 - 7.1.1.4 - 7.1.2.3 - 7.1.2.4 - 7.1.2.6 - 7.1.3.3 - 7.1.3.4 - 7.1.3.6 - 7.1.4.3 - 7.1.4.4
- 7.1.4.6, depending on the size of the B Series lobe displacement pump, part of the LDPU.
7.3 How to order spare parts
With reference to the previous sections, the single parts that compose the LDPU are marked with an internal O.M.A.C. code.
This code is of vital importance when communicating with our spare parts department.
In order to have the spare parts delivered quickly you must communicate the following data to us, even via a purchase order:
machine model (*)
serial number (*)
component description
component reference code (refer to the attachments of the manual)
desired amount.
(*) information that can be found on the machine, on the nameplate
Contacts:
Tel .: 0522/629371 or 0522/629923 and ask for the “spare parts” department
Fax: 0522/628980
E-mail: info@omacpompe.com
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